Hello everyone,
Apologies if this has already been covered elsewhere, I could not find a clear answer to my issue.
I recently bought a second hand Ender 3 V3 KE. When I power it on, it goes through the initial setup, but I am facing two problems.
First issue:
- On startup, the CR Touch lights up red and deploys and retracts twice, which I assume is part of the height check. The setup then proceeds with nozzle heating and hotbed heating, both complete successfully. During nozzle cleaning, the nozzle touches the bed three times in one spot, then three times in another. After that, I get an error related to measurement override, followed by “Nozzle wipe anomaly”.
Second issue:
- Sometimes, when I power it on, the CR Touch does not respond at all and does not deploy at all. When this happens, the printer moves to the center of the bed during setup and shows error 2194, unknown exception, with a warning about automatic height anomaly.
What I have tried so far:
- Firmware update
- Cleaned the CR-Touch and ensure its not blocked and the pin that deploys moves.
- look for loose connections all across the printer
- I dismantled the print head and cleaned the nozzle
- I checked the 30 pin cable connection, reseated it on both ends, and verified continuity across all pins. The cable appears fine and there are no bent pins on all boards connectors.
- I also checked the sensor and the board under the heatbed. I did not find any visible damage, wiring looks fine, and there are no signs of water damage or bad solder joints.
Next steps I am considering:
-
Replacing the CR Touch sensor. Most replacements I find are listed for Ender 3, Ender 3 Pro, Ender 3 V2, Ender 5, or CR 10. Can anyone confirm if these are compatible with the V3 KE
-
Replacing the board and sensor under the heatbed
Before I start buying parts, I would really appreciate any advice. Do you think this is likely to fix the issue, or could it be something else
Thanks in advance.